| Value | Category | Cases | |
|---|---|---|---|
| 0 | No prior child | 7154 |
34.1%
|
| 2 | 5453 |
26%
|
|
| 3 | 6085 |
29%
|
|
| 4 | 2044 |
9.8%
|
|
| 5 | 201 |
1%
|
|
| 6 | 27 |
0.1%
|